JPS5851782B2 - Die casting machine injection method - Google Patents
Die casting machine injection methodInfo
- Publication number
- JPS5851782B2 JPS5851782B2 JP55002048A JP204880A JPS5851782B2 JP S5851782 B2 JPS5851782 B2 JP S5851782B2 JP 55002048 A JP55002048 A JP 55002048A JP 204880 A JP204880 A JP 204880A JP S5851782 B2 JPS5851782 B2 JP S5851782B2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- injection
- molten metal
- casting machine
- injection sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
この発明は、ダイカストマシンの射出方法に関するもの
であり、射出スリーブ内の金属溶湯の保温のためと、射
出スリーブ中でプランジャチップを円滑に摺動させるた
めに、射出スリーブ中に薄い可燃性材料である紙製の筒
状体を入れ、この中に溶湯を注湯して射出するようにし
たものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an injection method for a die casting machine. A thin cylindrical body made of paper, which is a combustible material, is placed inside, and molten metal is poured into it and then injected.
つぎに、図面に示した１実施例によって、この発明を説
明する。Next, the present invention will be explained with reference to an embodiment shown in the drawings.
図面は竪型ダイカストマシンの射出装置の主要部の１実
施例を示すもので、１は従来より公知の特殊鋼製の射出
スリーブ、２は鋳鉄製などのプランジャチップであり、
プランジャチップ２は射出スリーブ１中に摺動自在に設
けた。The drawing shows one embodiment of the main parts of the injection device of a vertical die-casting machine, where 1 is an injection sleeve made of conventionally known special steel, 2 is a plunger tip made of cast iron, etc.
The plunger tip 2 is slidably provided in the injection sleeve 1.
射出スリーブ１中には、射出の各サイクル毎に、薄い可
燃性材料である紙製の筒状体３を入れ、この筒状体３内
に金属溶湯４を注湯し、プランジャチップ２を作動させ
て図示していない金型内に射出するようにした。A thin cylindrical body 3 made of paper, which is a combustible material, is inserted into the injection sleeve 1 for each cycle of injection, and molten metal 4 is poured into the cylindrical body 3 to activate the plunger tip 2. The liquid was then injected into a mold (not shown).
筒状体３は、円筒状のものか、カップ状のものを用いる
ようにし、射出スリーブ１の内周面にほぼ密着させた状
態で射出スリーブ１中に入れうるものを用いる。The cylindrical body 3 is either cylindrical or cup-shaped and can be inserted into the injection sleeve 1 while being in close contact with the inner peripheral surface of the injection sleeve 1.
図示したような状態で、射出スリーブ１中の可燃性材料
からなる筒状体３の中に、上方から、金属溶湯４を入れ
れば、筒状体３が燃えて炭素膜ができる。If the molten metal 4 is poured into the cylindrical body 3 made of a combustible material in the injection sleeve 1 from above in the state shown in the figure, the cylindrical body 3 will burn and a carbon film will be formed.
この場合、筒状体３が灰になる前に、金属溶湯が入るの
で、筒状体３が燃えてできた炭素膜は、その形がくずれ
ることなく、射出スリーブ１の内周面と金属溶湯４の外
周面との間に、そのまま残る。In this case, since the molten metal enters the cylindrical body 3 before it becomes ashes, the carbon film formed by the burning of the cylindrical body 3 does not lose its shape, and the inner peripheral surface of the injection sleeve 1 and the molten metal It remains as it is between it and the outer peripheral surface of No. 4.
この炭素膜は、射出スリーブ１中の金属溶湯４の保温の
役目をはたすので、射出前の金属溶湯４は温度がほとん
ど下がらず、この状態で射出すれば極めて良質の射出製
品が得られる。This carbon film serves to keep the molten metal 4 in the injection sleeve 1 warm, so the temperature of the molten metal 4 before injection hardly drops, and if the molten metal 4 is injected in this state, an extremely high quality injection product can be obtained.
また、この炭素膜は、固体潤滑剤の役目をはたすので、
プランジャチップ２は射出スリーブ１中を円滑に摺動し
、かじり現象がおきることはない。In addition, this carbon film acts as a solid lubricant, so
The plunger tip 2 slides smoothly in the injection sleeve 1 without any galling phenomenon.
この発明では、保温体としての筒状体３に、断熱性は必
要であるが、耐熱性は必要でないので、その材料として
紙である可燃性材料を用いた。In this invention, the cylindrical body 3 serving as a heat insulator needs to have heat insulation properties but not heat resistance, so a combustible material such as paper is used as its material.
しかも、ダイカストにおいては、給湯してから射出する
ま゛での射出スリーブ１内の溶湯の滞留時間は数秒であ
るので、その間のみ断熱性を有しておれば良く、セラミ
ックス系のように耐熱性の材料を必要としていない。Moreover, in die casting, the residence time of the molten metal in the injection sleeve 1 from supply to injection is only a few seconds, so it is only necessary to have heat insulation properties during that time; does not require any materials.
なお、射出スリーブ１内に入れる保温体としての円筒体
３として耐熱性のものを用いれば、それは溶けたり燃え
たりすることがなく、射出時に、その円筒体は溶湯とい
っしょに移動し変形するが、その一部または破片が溶湯
内に混入して射出製品の中に入るおそれがおおいにある
。Note that if a heat-resistant material is used as the cylindrical body 3 as a heat insulating body to be inserted into the injection sleeve 1, it will not melt or burn, and during injection, the cylindrical body will move and deform together with the molten metal. , there is a strong possibility that some of it or its fragments will get mixed into the molten metal and enter the injection product.
そして、それにともなって、射出製品の機械的性質の劣
下を招き、また、それが加工面にある場合は、機械加工
時に刃物の切損などのトラブルを引起こす。This results in a deterioration of the mechanical properties of the injection product, and if it is present on the machined surface, it causes problems such as breakage of the cutter during machining.
したがって、射出スリーブ１内に溶湯を充填する数秒間
で保温体である円筒体３はやわらかく、また、微細な物
質に変化するものが望ましいが、この発明では保温体で
ある円筒体３として紙を用いているので、それらを充分
に満足しており、さらに好都合なことに、全く無害な炭
素に分解するので、プランジャチップの潤滑にも役立つ
。Therefore, it is desirable that the cylindrical body 3 serving as a heat insulator becomes soft and changes into a fine substance within a few seconds of filling the injection sleeve 1 with molten metal. Since they are used, they are quite satisfactory and, moreover, advantageously, they decompose into completely harmless carbon, which also serves to lubricate the plunger tip.
また、この発明では、射出スリーブ１の内周壁面と、紙
からなる暫定的な保温体である円筒体３の外周面との間
の空気が入っているわずかなすき間によるエアギャップ
、および、円筒体３が燃えて熱分解または炭化して発生
するガスの作用により、総合的な断熱を行っている。Further, in the present invention, an air gap is created by a slight gap containing air between the inner circumferential wall surface of the injection sleeve 1 and the outer circumferential surface of the cylindrical body 3, which is a temporary heat insulating body made of paper, and Comprehensive heat insulation is achieved by the action of the gas generated when the body 3 burns and is thermally decomposed or carbonized.
このように、この発明においては、射出スリーブ中に、
可燃性材料である紙製の筒状体を入れ、この中に金属溶
湯を入れて射出するようにしたので、可燃性材料の筒状
体は金属溶湯のために燃え、炭素膜となる。In this way, in this invention, in the injection sleeve,
Since a cylindrical body made of paper, which is a combustible material, is placed and the molten metal is poured into the cylindrical body and then injected, the cylindrical body made of combustible material burns due to the molten metal, and becomes a carbon film.
そして、この炭素膜が、金属溶湯の保温と、固体潤滑剤
の役目をはたすので、良質の射出製品が得られるととも
に、プランジャチップは射出スリーブ中を常に円滑に摺
動し、かじり現象も起きず、射出作動が安全であり、か
つ、プランジャチップの寿命も延びる。This carbon film keeps the molten metal warm and acts as a solid lubricant, resulting in high-quality injection products, and the plunger tip always slides smoothly inside the injection sleeve without causing galling. , the injection operation is safe and the life of the plunger tip is extended.
また、この発明では、保温体としての円筒体３に紙を用
いているので、それは燃えて無害な炭素に分解してビス
ケットランナの中に残ることにより、回収地金の中にセ
ラミックスの破片などのようにかたい物が残って、それ
を用いて成形した射出製品の機械加工時に刃物の切損が
起こるなどという心配は全くする必要がなく、ビスケッ
トランチをそのまま溶解炉や保温炉に投入して再使用で
き、円筒体の分解されたものが含まれているビスケット
ランナから地金を回収するのを極めて容易に行える。In addition, in this invention, since paper is used for the cylindrical body 3 as a heat insulator, it burns and decomposes into harmless carbon and remains in the biscuit runner, resulting in ceramic fragments being generated in the recovered metal. There is no need to worry about hard materials such as those left behind and breakage of the cutter during machining of injection products molded using the hard materials, and the biscuit lunch can be directly put into the melting furnace or insulating furnace. This makes it extremely easy to recover the metal from the biscuit runner containing disassembled cylinders.
さらに、この発明においては、保温体である円筒体とし
て、ごく一般的に使用されている紙を用いれば良いので
、使用済の紙でも使用でき、極めて容易に得られ、かつ
、実質的にただに近く、加工もやさしく、極めて経済的
で実用的である。Furthermore, in this invention, as the cylindrical body serving as a heat insulating body, it is sufficient to use paper that is very commonly used, so even used paper can be used, and it is extremely easy to obtain and is substantially free. It is easy to process, extremely economical, and practical.
なお、この発明は、竪型ダイカストマシンだけでなく、
横型のダイカストマシンでも実施できる。Note that this invention is applicable not only to vertical die-casting machines, but also to
It can also be carried out using a horizontal die-casting machine.
その場合は、固定盤側から射出スリーブ中に、円筒状ま
たは注湯口部に相当する部分を切欠いだ円筒状の筒状体
３を装入した後、給湯すると良い。In that case, hot water is preferably supplied after inserting a cylindrical body 3 having a cylindrical shape or a cylindrical body 3 having a portion corresponding to a pouring spout notched into the injection sleeve from the fixed platen side.
図面はこの発明の方法を実施するための装置の１実施例
を示す縦断面図である。
１・・・・・・射出スリーブ、２・・・・・・プランジ
ャチップ、３・・・・・・筒状体、４・・・・・・溶湯
。The drawing is a longitudinal sectional view showing one embodiment of an apparatus for carrying out the method of the invention. 1... Injection sleeve, 2... Plunger chip, 3... Cylindrical body, 4... Molten metal.
Claims (1)
状体内に金属溶湯を入れた後、射出するようにしたダイ
カストマシンの射出方法。1. An injection method for a die-casting machine in which a cylindrical body made of paper is placed in an injection sleeve, molten metal is poured into the cylindrical body, and then the metal is injected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55002048A JPS5851782B2 (en) | 1980-01-14 | 1980-01-14 | Die casting machine injection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55002048A JPS5851782B2 (en) | 1980-01-14 | 1980-01-14 | Die casting machine injection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5699062A JPS5699062A (en) | 1981-08-10 |
| JPS5851782B2 true JPS5851782B2 (en) | 1983-11-18 |
Family
ID=11518437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55002048A Expired JPS5851782B2 (en) | 1980-01-14 | 1980-01-14 | Die casting machine injection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5851782B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10995760B1 (en) * | 2019-10-31 | 2021-05-04 | Commercial Energy Solutions, LLC | Computer-controlled power takeoff driven motorized pump system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6432886B1 (en) | 1999-09-08 | 2002-08-13 | Mary R. Reidmeyer | Agglomerated lubricant |
| US6291407B1 (en) | 1999-09-08 | 2001-09-18 | Lafrance Manufacturing Co. | Agglomerated die casting lubricant |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5135449A (en) * | 1974-09-17 | 1976-03-25 | Kyowa Hakko Kogyo Kk | |
| JPS5342013A (en) * | 1976-09-29 | 1978-04-17 | Hitachi Ltd | Tape drive mechanism for tape recorder |
-
1980
- 1980-01-14 JP JP55002048A patent/JPS5851782B2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5135449A (en) * | 1974-09-17 | 1976-03-25 | Kyowa Hakko Kogyo Kk | |
| JPS5342013A (en) * | 1976-09-29 | 1978-04-17 | Hitachi Ltd | Tape drive mechanism for tape recorder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10995760B1 (en) * | 2019-10-31 | 2021-05-04 | Commercial Energy Solutions, LLC | Computer-controlled power takeoff driven motorized pump system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5699062A (en) | 1981-08-10 |
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